BS ISO 14400:2021 pdf download – Road vehicles — Wheels and rims — Use, general maintenance and safety requirements and out-of-service conditions.
1 Scope This document specifies requirements for the use, general maintenance and safety of wheels and rims including multi-piece wheels and rims. This document defines their out-of-service conditions, such as cracked, worn and bent wheels and rim components. It is applicable to wheels intended for use on road as defined in ISO 3833 and off road vehicles. This document does not include mopeds and motorcycles. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3911, Wheels and rims for pneumatic tyres — Vocabulary, designation and marking 3? Terms? and? definitions For the purposes of this document, the terms and definitions given in ISO 3911 apply. ISO and IEC maintain terminology databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https://www.iso.org/obp — IEC Electropedia: available at https://www.electropedia.org/ 4 Use and general maintenance requirements WARNING — On multi-piece rims, the use of the wrong ring components can result in catastrophic wheel failure. 4.1 Wheel and wheel components Wheels or parts of wheels which cannot be identified shall not be used even if they seem to have the correct functions and the identical dimensions. The characteristics of the wheel centre shall correspond exactly to vehicle parts, especially the axle hub and the brake, in order to guarantee a proper fitting and an effective load transmission. A neutral non-aggressive mounting paste or liquid shall be used to lubricate the tyre beads. The hub, studs, nuts and the wheel attachment face shall be carefully cleaned. In the case of multi-piece wheels, all contact surfaces shall be cleaned. Inspect parts for out-of-service conditions, see Clause 6.